ACM2520-301-2P-T002

ACM2520-301-2P-T002 is a common-mode choke from TDK's ACM2520 series in a 2.5 x 2.0 x 1.2 mm case — and a TDK product information document for this part, generated from TDK's own website data on 2020-09-21, lists its status as Production as of that date; its present-day lifecycle status is not confirmed here — verify it when sourcing, and do not read the document's age as a discontinuation signal either. The figures from that document: common-mode impedance 300 Ω typical and 225 Ω minimum at 100 MHz, common-mode inductance 660 nH at 1 MHz (reference value), rated current 400 mA, rated voltage 20 V DC, insulation resistance 10 MΩ minimum, DC resistance 350 mΩ maximum, operating range −40 °C to +85 °C. The code reads as it is built: 301 is the 300 Ω impedance class, 2P the two lines, T002 the phi-180 mm reel packing at 2,000 pieces. The selection point is HDMI, USB and LVDS-class pair protection in a 2520 footprint. Selection advice: the 660 nH figure is a reference value, not a guaranteed minimum — the guaranteed numbers are the impedance window, so design against 225 Ω.